Territory



-2 Sheets-Sheet 1.

0. TREGONING. PERMUTATION LOOK.

(No Model.)

No. 301,646. Patented July 8, 1884.

5 INVBNTOR.

WITNESSES:

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2 Sheets-Sheet 2.

(No Model.) 0. TREGONING'. PERMUTATION LOCK. No. 301,646. Patented July8, 1884.1

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INVENTOR: 4615M. fig

ATTORNEYS.

NITED STATES CHARLES TREGOXIXG, OF LEAD C ITY, DAKQTA TERRITORY.

PERMUTAT EON-LOCK.

SPECIFICATION forming part of Letters Patent NO. 301,646, dated July 8,1884.

I Application filed February 8, 1884. (No model.) I

To aaZZ whom, it may concern:

Be it,known that I, Crninrns TREGONING, of Lead City, in the county ofLawrence and Territory of Dakota, have-invented a new and usefulImprovement in CombinatiomLocks, of which the following is a full,clear, and exact description.

This invention relates to that class of locks in which a series ofconcealed disks are operated by turning graduated visible dials tocoincide with certain prearranged figures to liberate the belt of thelock; and it has for its object to provide means whereby two disks maybe operated by one visible dial, and means whereby a series of dials mayall be liberated at once to be set relatively to each other.

To this end my invention consists in the construction and combination ofparts forming a lock, hereinafter described and claimed, ref ercncebeing had to the accompanying drawings, in which- Figure 1 is afrontelevation of my lock and a portion of a trunk to which it is attached.Fig. 2 is a rear view of a portion of the same, Fig. 3 is an interiorrear view in elevation. Fig. 4 is a transverse vertical section. Fig. 5is a rear view of the interior of the lock with some of the disksremoved, and Fig. 6 shows a modification of the bolt.

A represents the body of the lock, which may be made in any formadaptedto the purpose for which it is to be used. It is here shown as atrunk-lock.

disks are properly set, thereby leaving the main bolt 13 free to heslid.

g is a spring which acts'continually against the cross-bolt to retractit, so that when all the notches f come opposite to said bolt it will besprung back. The disks are provided with means for changing the positionof their respective notches relatively to each other around their commonspindle J, and with means for indicating on the exterior of the locksaid position, as follows: The lock-plate A has a hollow stud, a, uponwhich the first disk, G, and its toothed wheel I arejournaled to revolvefreely. The stud a is just as high as the united thickness of disk G andwheel I.

H is acircularly-graduated and figured dial fitted into a circularledge, L, of plate A, and provided with a hollow shaft, 72, which fitsto revolve within the stud a, and provided with a knob, h, by means ofwhich it may be turned.

7) is a hand secured upon shaft h by means of a slot in the shaft and aspline, c, in the ring of the hand.

(I is a stud or pin standing from the face of the toothed wheel I in thepath of the hand b.

K is a spring-operated pawl hung upon the disk G, to engage the teeth ofthe wheel I, thereby connecting the disk and wheel to revolve together,but rendering them adj ustable, so that the pin (2 may be set in anyrelation to the notch f. W'hen the dial H is revolved, it carries withit the hand I), and this hand may revolve either way nearly a whole Brepresents the bolt which slides across the circle before it strikes thepin d, and carries opening B, to hold the hasp G, as usual. The

belt is slid to and fro by means of latches D and connecting-rods E. Thelatches D are shaped with fingerspots .or lever ends, by which they maybe swung to and fro to work the rods E.

To prevent the bolt B from being slid to unlock it, I provide anotherbolt, 1*, whichis mounted in a groove between rigid posts A of thelock-frame, to slide in a direction at right angles to the bolt B,toenter a notch, f,therein.

G G G represent a series of disks whose circnlar'edges touch against therear end of bolt F when it is extended, andany one of the disks willhold the bolt F so extended; but each disk is provided with a notch, f,into which the cross-bolt F may slide when the the toothed wheel I anddisk G.

G is another disk provided with a toothed wheel, 1, and spring-pawl K.The disk G may revolve upon the hollow shaft h when its pawl isdisconnected from the toothed wheel I; but said wheel I is splined tosaid shaft h, to revolve therewith.

H is another dial within the first, provided with a spindle or solidshaft, J, which is journaled in the hollow shaft in G is a disk mountedto revolve, when at liberty, on shaft J. Toothed wheel I is pinned toshaft J to revolve therewith, and is connected with disk G by aspring-pawl, k. The disk G is wedge-shaped at one edge of the notch f,whereby the cross-bolt F may be driven out of the disks by turning dialH.

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The dials may have any style of circular gradations and figures toindicate their relative positions. v

It will be seen that each pawl 70 extends forward from its pivot beyondits teeth; and I provide a series of hooks, P, to engage these while thedisks stand still.

forward ends of the pawls, and the hooks, having one common hub, areoperated by one handle, 0, located on the exterior of the lock withinthe trunk, to disengage all the pawls at once from their toothedwheels,.thereby leaving the said wheels free to revolve with theirdials, The disks will be held still by the cross-bolt F when retractedinto the disk-notches f. Lever O is provided with a stud, q, to projectinto holes 2 p in the rear loek plate. The hooks P are in service whenthe stud q is in the hole 1), and they will retain all the pawls, sothat all the dials may be set. WVhen the stud q is in the hole 1), thehooks are out of the path of the pawls, leaving the latter free toengage their respective toothed wheels.

The operation of setting a combination is as follows: Suppose the 0 markon the ring to be the point of registry, that the first disk, G, is tobe set by turning to the right to 70, the disk G at 50, and the disk Gat 5. First,- unlock thevbolt; second, set lever O at 19, thusdisengaging the disks from the dials; third,

turn dial H once around to the right to make sure that the hand 6 hasengaged the pin (2, then continue to turn forward until 7 O on dial Hregisters with 0 line on the ring; fourth, turn dial H back to the leftuntil 50 on the same dial registers with the same 0 line; when turningto the right, both dials G andG were being turned; but the instant theturning to the left began the hand b left the pin d and the disk Gstanding still; fifth, turn dial H either way until 5 thereon registerswith the 0 line; sixth, withdraw lever Oto hole p to release the pawlsK, and be sure that each pawl has engaged its toothed wheel. Now, thecombination is set and the lock is ready for use. To look it, place thehasp O in the hole B, slide the bolt B, then turn dial H, therebyforcing the cross-bolt F to secure bolt B. This cross-bolt is necessaryto prevent any onefrom feeling the position of the notches in the disks-If the rear end of the main bolt rested directly upon the disks, or ifit rested thereon by means of a lever which would be pushed into thenotches by the act ofwithdrawing the said bolt, then a person mightpress continually on the main bolt to withdraw it and feel the notchesas he revolved the separate disks. My cross-bolt, acting at right anglesto the main bolt, not only prevents this, but it will not be withdrawnby the light spring if it is pressed sidewise by the main bolt, thefriction caused thereby being too great to be overcome by the saidspring.

The object of arranging two disks to be registered by one dial'is toprevent any one seeing the combination while the lock is unlocked, forin the combination above stated the dialH will stand at 50 whenunlocked, while the number of disk G, which it has once registered, hasnow been moved, and is thereby concealed. By having but one holder towithdraw thepawls of the three disks all at once I simplify both theconstruction and operation of the lock. With three disks and fifty teethto each it would take more than a million yearg for any person .to tryall the combinations that might be made with thislock; so it may beconsidered to be tolerably safe. It is evident that the bolt F goesthrough all the movements necessary to serve as a main lock-bolt, sothat there may be places where I would dispense with bolt B and use boltF as the locking-bolt.

As a series of disks connected with toothed wheels by spring-pawls and aseries of sepa rate hooks for holding the said pawls disengaged fromtheir respective wheels are the subject of a former patent of my own, Ido not here claim the same. I

What I claim. as my invention, and wish to secure by Letters Patent, is-

1. The combination, with a series of notched lock-disks, a series ofgraduated dials, a toothed wheel connected with each dial, and aspringpawl upon each of the said disks connecting it with a toothedwheel, 'of a series of hooks adapted to engage the said pawls, and asingle handle whereby all of said hooks are sepa rated at once, as shownand described.

2. The combination, with a lock-case, A, having the hollow stud a,projecting inward from its front face, the notched disk G, and thetoothed wheel I, journaled on said stud, the spring-pawl K upon thedisk, and a studpin, d, upon the wheel I, of a graduated dial, H, havinga shaft, h, j ournaled in and extending through the stud a, a disk, G,journaled on .the shaft h, a toothed wheel, I, and a hand, I), securedto shaft h at the opposite end of the stud a from the dial II, and aspring-pawl connecting the disk G with the wheel I, as and for thepurpose specified;

CHARLES TREGONIN G.

Witnesses:

\V. X. Srnvmvs, SoLoNO. KEMON.

